Doctors Mayo Clinic has one of the largest and most experienced practices in the United States, with campuses in Arizona, Florida and Minnesota. Staff skilled in dozens of specialties work together to ensure quality care and successful recovery. Find doctors and medical staff: Edit search filters close Narrow your search Doctor's Name, Condition Or Procedure By location Rochester, MN Jacksonville, FL By last name Find a doctor whose last name begins with the letter A A Find a doctor whose last name begins with the letter B B Find a doctor whose last name begins with the letter C C Find a doctor whose last name begins with the letter D D Find a doctor whose last name begins with the letter E E Find a doctor whose last name begins with the letter F F Find a doctor whose last name begins with the letter G G Find a doctor whose last name begins with the letter H H Find a doctor whose last name begins with the letter I I Find a doctor whose last name begins with the letter J J Find a doctor whose last name begins with the letter K K active Find a doctor whose last name begins with the letter L L Find a doctor whose last name begins with the letter M M Find a doctor whose last name begins with the letter N N Find a doctor whose last name begins with the letter O O Find a doctor whose last name begins with the letter P P Find a doctor whose last name begins with the letter Q Q Find a doctor whose last name begins with the letter R R Find a doctor whose last name begins with the letter S S Find a doctor whose last name begins with the letter T T There are no doctors whose last name begins with the letter U U Find a doctor whose last name begins with the letter V V Find a doctor whose last name begins with the letter W W There are no doctors whose last name begins with the letter X X Find a doctor whose last name begins with the letter Y Y Find a doctor whose last name begins with the letter Z Z By conditions treated No results found By procedures performed No results found By spoken language No results found Reset all filters Search Tips Use quotes for phrases. Even if there are no auto-suggestions within the search field, hit "Search" anyway, as you may still get results. Displaying 1-4 out of 4 doctors available Last Name Initial: L Timothy S. Larson, M.D. Internist Nephrologist Clinical Informaticist Rochester, MN Areas of focus: Kidney transplant, Pancreas transplant, Pre-transplant evaluation, Kidney donor evaluation, Kidney function test, Post-...pancreas transplant care, Post-kidney transplant care, Pre-pancreas transplant evaluation Show more areas of focus for Timothy S. Larson, M.D. Napat Leeaphorn, M.D. Transplant Nephrologist Jacksonville, FL Areas of focus: Kidney transplant, Pancreas transplant, Hemodialysis, Immunosuppressive drug therapy, Dialysis, Continuous renal replac...ement therapy, Pre-transplant evaluation, Post-transplant long-term care, Polycystic kidney disease, Diabetic nephropathy, Chronic kidney disease, End-stage renal disease, Acute kidney inury, Transplant rejection, Kidney failure Show more areas of focus for Napat Leeaphorn, M.D. Nelson Leung, M.D. Hematologist Nephrologist Rochester, MN Areas of focus: Amyloidosis, Monoclonal gammopathy of undetermined significance, Chronic kidney disease, IgA nephropathy, Acute kidney ...inury, Kidney failure Show more areas of focus for Nelson Leung, M.D. John C. Lieske, M.D. Internist Nephrologist Rochester, MN Areas of focus: Kidney stone, Chronic kidney disease, End-stage renal disease, Hyperoxaluria Request an appointment Conditions treatedSpecialty groups Dec. 05, 2025 Share on: FacebookTwitter Nephrology and HypertensionSectionsRequest an appointmentOverviewTests & proceduresConditions treatedDoctorsSpecialty groupsExpertise & rankingsClinical trialsResearchPatient storiesCosts & insuranceNews from Mayo ClinicReferrals SectionsRequest an appointmentOverviewTests & proceduresConditions treatedDoctorsSpecialty groupsExpertise & rankingsClinical trialsResearchPatient storiesCosts & insuranceNews from Mayo ClinicReferrals ORG-20464466 Medical Departments & Centers Nephrology and Hypertension